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Add: async partial flush

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This commit is contained in:
Andrey Egorov 2024-09-18 22:32:47 +03:00
parent eff00d2351
commit f29bbf8345
8 changed files with 266 additions and 173 deletions
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7
display/display.go
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@ -9,7 +9,12 @@ import (
) )
type Display interface { type Display interface {
Flush(img *image.Gray) error Flush(crystal, page byte)
// Image functions
GetImg() *image.Gray
LockImg()
UnlockImg()
GetBounds() image.Rectangle GetBounds() image.Rectangle
Test(ctx context.Context) error Test(ctx context.Context) error

153
display/mt-12232a.go
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@ -6,18 +6,35 @@ import (
"image" "image"
"log" "log"
"math/rand" "math/rand"
"sync"
"sync/atomic"
"time" "time"
"gitea.unprism.ru/yotia/display-test/pkg/mt12232a" "gitea.unprism.ru/yotia/display-test/pkg/mt12232a"
) )
var _ = rand.Int() // TMP for import to exist var _ = rand.Int() // for import existance
const (
mt12232aW = 122
mt12232aH = 32
flushChanCap = 24 // Flush channel capacity
)
type displayMt12232a struct { type displayMt12232a struct {
logger *log.Logger logger *log.Logger
// Image
img *image.Gray
imgMutex sync.Mutex
// GPIO pins // GPIO pins
dev mt12232a.Device dev mt12232a.Device
// Flush goroutine
flushCancel context.CancelFunc
pagesFlushFlags atomic.Uint32 // (!use only 8 bits) Every bit corresponds to page/crystal with this number
flushDone chan struct{}
} }
func newMt12232a(logger *log.Logger) (Display, error) { func newMt12232a(logger *log.Logger) (Display, error) {
@ -31,15 +48,16 @@ func newMt12232a(logger *log.Logger) (Display, error) {
bits[i] = make([]byte, 122) bits[i] = make([]byte, 122)
} }
// if err := dev.PowerOn(); err != nil { ctx, cancel := context.WithCancel(context.Background())
// return nil, fmt.Errorf("power on: %w", err)
// }
// Setup submit goroutine // Setup submit goroutine
d := displayMt12232a{ d := displayMt12232a{
logger: logger, logger: logger,
dev: dev, dev: dev,
flushCancel: cancel,
img: image.NewGray(image.Rect(0, 0, mt12232aW, mt12232aH)),
flushDone: make(chan struct{}), // For waiting flush to finish before exiting
} }
go d.flushLoop(ctx)
// Temp debug draw // Temp debug draw
//if st0, st1 := d.dev.ReadStatus(0), d.dev.ReadStatus(1); false { //st0&0x20 == 0 && st1&0x20 == 0 { //if st0, st1 := d.dev.ReadStatus(0), d.dev.ReadStatus(1); false { //st0&0x20 == 0 && st1&0x20 == 0 {
@ -131,66 +149,23 @@ func (d *displayMt12232a) powerOn() error {
} }
func (d *displayMt12232a) Test(ctx context.Context) error { func (d *displayMt12232a) Test(ctx context.Context) error {
d.dev.WriteCode(0, 0xB8)
d.dev.WriteCode(0, 0x14)
d.dev.WriteData(0, 0xAE)
start := time.Now() start := time.Now()
d.status("4")
for p := 0; p < 4; p++ { for p := 0; p < 4; p++ {
// First
// d.dev.WriteCode(0, byte(p)|0xB8)
// d.dev.WriteCode(0, 0x13)
// for c := 0; c < 61; c++ {
// d.dev.WriteData(0, 0)
// }
// d.dev.WriteCode(1, byte(p)|0xB8)
// d.dev.WriteCode(1, 0x00)
// for c := 0; c < 61; c++ {
// d.dev.WriteData(1, 0)
// }
//
// Second
d.dev.WriteCode(0, byte(p)|0xB8) d.dev.WriteCode(0, byte(p)|0xB8)
d.dev.WriteCode(0, 0x13) d.dev.WriteCode(0, 0x13)
for c := 0; c < 61; c++ { for c := 0; c < 61; c++ {
//d.dev.WriteDatas(0, []byte{byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2)})
//d.dev.WriteData(0, byte(0xF0^(0xFF*(c%2))))
d.dev.WriteData(0, byte(rand.Int())) d.dev.WriteData(0, byte(rand.Int()))
// d.dev.WriteData(0, 0xFF)
//d.dev.WriteData(0, byte(p*122+c))
//time.Sleep(2 * time.Millisecond)
} }
d.dev.WriteCode(1, byte(p)|0xB8) d.dev.WriteCode(1, byte(p)|0xB8)
d.dev.WriteCode(1, 0x00) d.dev.WriteCode(1, 0x00)
for c := 0; c < 61; c++ { for c := 0; c < 61; c++ {
//d.dev.WriteDatas(1, []byte{byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2)})
d.dev.WriteData(1, byte(rand.Int())) d.dev.WriteData(1, byte(rand.Int()))
// d.dev.WriteData(1, 0xFF)
//d.dev.WriteData(1, byte(4*int(p)+c))
//d.dev.WriteData(1, byte(p*122+c+61))
//d.dev.WriteData(1, byte(rand.Int())>>1)
//time.Sleep(2 * time.Millisecond)
} }
} }
d.status("9")
end := time.Now() end := time.Now()
d.logger.Println(end.Sub(start)) d.logger.Println(end.Sub(start))
// for p := byte(0); p < 8; p++ {
// d.dev.WriteCodeL(p | 0xB8)
// d.dev.WriteCodeL(0x40)
// for c := 0; c < 64; c++ {
// d.dev.WriteDataL(Logo128[p][c])
// }
// d.dev.WriteCodeR(p | 0xB8)
// d.dev.WriteCodeR(0x40)
// for c := 64; c < 128; c++ {
// d.dev.WriteDataR(Logo128[p][c])
// }
// }
//d.dev.WriteCodeL(0xAF) // Display on
//d.dev.WriteCodeR(0xAF) // Display on
return nil return nil
} }
@ -199,7 +174,7 @@ func (d *displayMt12232a) GetBounds() image.Rectangle {
return image.Rect(0, 0, 122, 32) return image.Rect(0, 0, 122, 32)
} }
func (d *displayMt12232a) Flush(img *image.Gray) error { func (d *displayMt12232a) FlushFull(img *image.Gray) error {
st := time.Now() st := time.Now()
for p := byte(0); p < 4; p++ { for p := byte(0); p < 4; p++ {
@ -236,7 +211,83 @@ func (d *displayMt12232a) Flush(img *image.Gray) error {
return nil return nil
} }
func (d *displayMt12232a) Close() error { func (d *displayMt12232a) Flush(crystal, page byte) {
// !!! TODO Need to update GO to 1.23 to use .Or !!!
bit := uint32(1 << (crystal*4 + page))
d.pagesFlushFlags.Store(d.pagesFlushFlags.Load() | bit)
}
func (d *displayMt12232a) Close() error {
if d.flushCancel != nil {
d.flushCancel()
d.flushCancel = nil
<-d.flushDone
}
return d.dev.Close() return d.dev.Close()
} }
func (d *displayMt12232a) flushLoop(ctx context.Context) {
for {
select {
case <-ctx.Done():
close(d.flushDone)
return
case <-time.After(time.Millisecond):
forUpdate := d.pagesFlushFlags.Swap(0)
checkBit := uint32(1)
st := time.Now()
d.LockImg()
for p := byte(0); p < 4; p++ {
if forUpdate&(checkBit) != 0 {
d.dev.WriteCode(0, (3-p)|0xB8)
d.dev.WriteCode(0, 0x13)
for c := 0; c < 61; c++ {
d.dev.WriteDatas(0, []byte{
d.img.Pix[int(p<<3+7)*122+c],
d.img.Pix[int(p<<3+6)*122+c],
d.img.Pix[int(p<<3+5)*122+c],
d.img.Pix[int(p<<3+4)*122+c],
d.img.Pix[int(p<<3+3)*122+c],
d.img.Pix[int(p<<3+2)*122+c],
d.img.Pix[int(p<<3+1)*122+c],
d.img.Pix[int(p<<3+0)*122+c],
})
}
}
checkBit = checkBit << 1
}
d.logger.Printf("%08b - %s\n", forUpdate, time.Since(st))
for p := byte(0); p < 4; p++ {
if forUpdate&(checkBit) != 0 {
d.dev.WriteCode(1, (3-p)|0xB8)
d.dev.WriteCode(1, 0x00)
for c := 61; c < 122; c++ {
d.dev.WriteDatas(1, []byte{
d.img.Pix[int(p<<3+7)*122+c],
d.img.Pix[int(p<<3+6)*122+c],
d.img.Pix[int(p<<3+5)*122+c],
d.img.Pix[int(p<<3+4)*122+c],
d.img.Pix[int(p<<3+3)*122+c],
d.img.Pix[int(p<<3+2)*122+c],
d.img.Pix[int(p<<3+1)*122+c],
d.img.Pix[int(p<<3+0)*122+c],
})
}
}
checkBit = checkBit << 1
}
d.UnlockImg()
}
}
}
func (d *displayMt12232a) GetImg() *image.Gray {
return d.img
}
func (d *displayMt12232a) LockImg() {
d.imgMutex.Lock()
}
func (d *displayMt12232a) UnlockImg() {
d.imgMutex.Unlock()
}

13
display/mt-12864a.go
View File

@ -142,10 +142,19 @@ func (d *displayMt12864a) GetBounds() image.Rectangle {
return image.Rectangle{} return image.Rectangle{}
} }
func (d *displayMt12864a) Flush(img *image.Gray) error { func (d *displayMt12864a) Flush(crystal, page byte) {
return nil
} }
func (d *displayMt12864a) Close() error { func (d *displayMt12864a) Close() error {
return rpio.Close() return rpio.Close()
} }
func (d *displayMt12864a) GetImg() *image.Gray {
return nil
}
func (d *displayMt12864a) LockImg() {
}
func (d *displayMt12864a) UnlockImg() {
}

14
display/ssd1306.go
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@ -57,8 +57,8 @@ func (d *displaySsd1306) Test(ctx context.Context) error {
return nil return nil
} }
func (d *displaySsd1306) Flush(img *image.Gray) error { func (d *displaySsd1306) Flush(crystal, page byte) {
return d.dev.Draw(img.Bounds(), d.img, image.Point{}) //return d.dev.Draw(img.Bounds(), d.img, image.Point{})
} }
func (d *displaySsd1306) Close() error { func (d *displaySsd1306) Close() error {
@ -67,3 +67,13 @@ func (d *displaySsd1306) Close() error {
} }
return nil return nil
} }
func (d *displaySsd1306) GetImg() *image.Gray {
return nil
}
func (d *displaySsd1306) LockImg() {
}
func (d *displaySsd1306) UnlockImg() {
}

8
drawer/bar.go
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@ -3,8 +3,8 @@ package drawer
import "math" import "math"
func (d *drawer) FillBar(sx, sy, ex, ey, color int) { func (d *drawer) FillBar(sx, sy, ex, ey, color int) {
d.Lock() d.dev.LockImg()
defer d.Unlock() defer d.dev.UnlockImg()
bounds := d.img.Bounds() bounds := d.img.Bounds()
// Crop // Crop
@ -24,8 +24,8 @@ func (d *drawer) FillBar(sx, sy, ex, ey, color int) {
} }
func (d *drawer) PutBar(sx, sy, ex, ey, color int) { func (d *drawer) PutBar(sx, sy, ex, ey, color int) {
d.Lock() d.dev.LockImg()
defer d.Unlock() defer d.dev.UnlockImg()
bounds := d.img.Bounds() bounds := d.img.Bounds()
// Crop // Crop

46
drawer/drawer.go
View File

@ -2,26 +2,21 @@ package drawer
import ( import (
"image" "image"
"sync"
"gitea.unprism.ru/yotia/display-test/display" "gitea.unprism.ru/yotia/display-test/display"
) )
type drawer struct { type drawer struct {
dev display.Display dev display.Display
img *image.Gray img *image.Gray
imgMutex sync.Mutex
} }
type Drawer interface { type Drawer interface {
GetDisplay() display.Display
// Lowlevel image
GetImg() *image.Gray
Lock()
Unlock()
Clear() Clear()
Flush() error Flush()
PutText(x, y int, text string) PutText(x, y int, text string)
@ -30,36 +25,35 @@ type Drawer interface {
} }
func New(dev display.Display) Drawer { func New(dev display.Display) Drawer {
return &drawer{ d := &drawer{
dev: dev, dev: dev,
img: image.NewGray(dev.GetBounds()),
}
} }
func (d *drawer) GetImg() *image.Gray { d.img = d.dev.GetImg()
return d.img return d
} }
func (d *drawer) Lock() { func (d *drawer) GetDisplay() display.Display {
d.imgMutex.Lock() return d.dev
}
func (d *drawer) Unlock() {
d.imgMutex.Unlock()
} }
func (d *drawer) Clear() { func (d *drawer) Clear() {
d.Lock() d.dev.LockImg()
defer d.Unlock() defer d.dev.UnlockImg()
for i := range d.img.Pix { for i := range d.img.Pix {
d.img.Pix[i] = 0 d.img.Pix[i] = 0
} }
} }
func (d *drawer) Flush() error { func (d *drawer) Flush() {
d.Lock() // Flush all pages
defer d.Unlock() d.dev.Flush(0, 0)
d.dev.Flush(0, 1)
return d.dev.Flush(d.img) d.dev.Flush(0, 2)
d.dev.Flush(0, 3)
d.dev.Flush(1, 0)
d.dev.Flush(1, 1)
d.dev.Flush(1, 2)
d.dev.Flush(1, 3)
} }

156
drawer/font.go
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@ -143,70 +143,70 @@ var stdFont = []byte{
0x41, 0x36, 0x8, 0x0, 0x0, // } 0x41, 0x36, 0x8, 0x0, 0x0, // }
0x8, 0x4, 0x8, 0x4, 0x0, // ~ 0x8, 0x4, 0x8, 0x4, 0x0, // ~
0x0, 0x0, 0x0, 0x0, 0x0, // Hollow Up Arrow 0x0, 0x0, 0x0, 0x0, 0x0, // Hollow Up Arrow
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x55, 0x49, 0x55, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x0, 0x0, 0x0, 0x0, 0x0, // Empty 0x7f, 0x41, 0x41, 0x41, 0x7f, // Empty
0x7e, 0x11, 0x11, 0x7e, 0x0, // А 0x7e, 0x11, 0x11, 0x7e, 0x0, // А
0x7f, 0x49, 0x49, 0x31, 0x0, // Б 0x7f, 0x49, 0x49, 0x31, 0x0, // Б
0x7f, 0x49, 0x49, 0x36, 0x0, // В 0x7f, 0x49, 0x49, 0x36, 0x0, // В
@ -280,21 +280,31 @@ func IntMin(a, b int) int {
return b return b
} }
func IntMax(a, b int) int {
if a > b {
return a
}
return b
}
func (d *drawer) putChar(x0, y0 int, c byte) { func (d *drawer) putChar(x0, y0 int, c byte) {
if int(c) > len(stdFont)/5 { if int(c) > len(stdFont)/5 {
return return
} }
if y0 >= d.img.Rect.Dy() || x0 >= d.img.Rect.Dx() { //if x0+7 < 0 || y0+5 < 0 || y0 >= d.img.Rect.Dy() || x0 >= d.img.Rect.Dx() {
return // return
} //}
maxYi := IntMin(y0+7, d.img.Rect.Dy()) - y0 minX := IntMax(x0, 0) - x0
maxXi := IntMin(x0+5, d.img.Rect.Dx()) - x0 minY := IntMax(y0, 0) - y0
for yi := range maxYi { maxY := IntMin(y0+7, d.img.Rect.Dy()) - y0
maxX := IntMin(x0+5, d.img.Rect.Dx()) - x0
for yi := minY; yi < maxY; yi++ {
lineaddr := (y0+yi)*d.img.Stride + x0 lineaddr := (y0+yi)*d.img.Stride + x0
for xi := range maxXi { for xi := minX; xi < maxX; xi++ {
d.img.Pix[lineaddr+xi] = ((stdFont[int(c)*5+xi] >> yi) & 1) * 255 d.img.Pix[lineaddr+xi] = ((stdFont[int(c)*5+xi] >> yi) & 1) * 255
} }
} }
@ -309,8 +319,8 @@ func convertStr(str string) []byte {
} }
func (d *drawer) PutText(x0, y0 int, text string) { func (d *drawer) PutText(x0, y0 int, text string) {
d.Lock() d.dev.LockImg()
defer d.Unlock() defer d.dev.UnlockImg()
asciiStr := convertStr(text) asciiStr := convertStr(text)
//asciiStr := []byte(text) //asciiStr := []byte(text)

30
main.go
View File

@ -4,6 +4,7 @@ import (
"context" "context"
"fmt" "fmt"
"log" "log"
"math"
"os" "os"
"os/signal" "os/signal"
"syscall" "syscall"
@ -48,7 +49,7 @@ func DrawProgress(ctx context.Context, timeout time.Duration) error {
// Draw outline // Draw outline
x := 0 x := 0
y := drawer.FontCharH + 4 y := drawer.FontCharH + 4
w := d.GetImg().Rect.Dx() w := dev.GetImg().Rect.Dx()
h := drawer.FontCharH - 4 h := drawer.FontCharH - 4
d.PutBar(x, y, x+w, y+h, 255) d.PutBar(x, y, x+w, y+h, 255)
@ -74,9 +75,7 @@ func DrawProgress(ctx context.Context, timeout time.Duration) error {
if value >= 1 { if value >= 1 {
return nil return nil
} }
if err := d.Flush(); err != nil { d.Flush()
return fmt.Errorf("display flush: %w", err)
}
} }
} }
} }
@ -95,11 +94,26 @@ func Init(ctx context.Context) error {
d.Clear() d.Clear()
//d.FillBar(0, 0, 10, 10, 1) //d.FillBar(0, 0, 10, 10, 1)
d.PutText(0, 0, "можно 4 строки впихнуть") stTime := time.Now()
d.PutText(0, drawer.FontCharH+drawer.LineGap, "каждая буква 5x7") for {
d.PutText(0, (drawer.FontCharH+drawer.LineGap)*2, "+ русский через жопу") select {
d.PutText(0, (drawer.FontCharH+drawer.LineGap)*3, "KRBL forever!!") case <-ctx.Done():
return nil
default:
t := float64(time.Since(stTime).Milliseconds()) / 1000
x := math.Sin(t)*10 + 5
y := math.Cos(t)*10 + 5
d.Clear()
d.PutText(int(x), int(y), "CGSG forever")
stT := time.Now()
d.Flush() d.Flush()
logger.Println("Iteration time:", time.Since(stT))
}
}
//d.PutText(0, 0, "можно 4 строки впихнуть")
//d.PutText(0, drawer.FontCharH+drawer.LineGap, "каждая буква 5x7")
//d.PutText(0, (drawer.FontCharH+drawer.LineGap)*2, "+ русский через жопу")
//d.PutText(0, (drawer.FontCharH+drawer.LineGap)*3, "KRBL forever!!")
// Modem init // Modem init
//mInitCtx, mInitCtxCancel := context.WithCancel(ctx) //mInitCtx, mInitCtxCancel := context.WithCancel(ctx)